1. Singapore American School
Mr. Emerson
Grade 6 Science

2. When matter interacts to produce a new substance
it is called -
A: magic
B:
physical change
C: chemical reaction
D:
boiling

3. c. chemical
reaction

4. A chemical reaction in which heat is given off
A: endothermic
B:
exothermic
C: boiling
D:
evaportation

5. b. exothermic

6. The new substances that result from a
chemical reaction are called -
A: reactants
B:
gases
C: products
D:
compounds

7. c. products

8. Any change that results in the formation of a new
substance and can not usually or easily be reversed is -
A: a physical change
B:
difficult to make
happen
C: a rapid change
D:
a chemical change

9. d. a chemical
change

10. Effervescence means
A: production of a solid
B:
a color change has
occurred
C: production of a gas
D:
production of an odor

11. c. production
of a gas

12. Any characteristic that can be observed by your
senses is
A: physical property
B:
a measurable quantity
C: a chemical property
D:
determined by atomic
mass

13. a. a physical
property

14. A substance that can be broken down into simpler
parts by a chemical change is
A: an element
B:
an equation
C: highly reactive
D:
a compound

15. d. a
compound

16. A substance that can not be broken down into
a simpler substance is
A: a molecule
B:
an element
C: a compound
D:
inert

17. b. an element

18. Chemical shorthand for writing the elements
contained in a compound
A: formula
B:
symbol
C: equation
D:
reaction

19. a. formula

20. Choose which of the following is a compound
A: H
C:
B:
CuSO4
Fe
D:
Mg

21. c. CuSO4

22. A solid that may form when a reaction between
two liquids occurs
A: a white powder
B:
a precipitate
C: a reactant
D:
effervescence

23. b. a
precipitate

24. A chemical reaction in which heat is
taken in or absorbed is
A: dangerous
B:
exothermic
C: very common
D:
endothermic

25. d.
endothermic

26. The smallest piece of a compound that still has
the properties of that compound is
A: a atom
B:
a molecule
C: one gram
D:
equal to the number of
protons

27. b. a molecule

28. Chemicals that take part in a chemical reaction,
the beginning chemicals are
A: immiscible
B:
the products
C: the reactants
D:
liquids and gases

29. c. the
reactants

30. How many oxygen atoms are
in the compound CuSO4
A: 1
C:
B:
3
2
D:
4

31. d. 4

32. How many atoms are there all together
in the compound CuSO4
A: 4
C:
B:
5
6
D:
7

33. c. 6
1 copper (Cu)
1 Sulfur (S)
4 Oxygen (O)

34. Great Job!!!!
Thank you for playing!